{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["geographical social political", "organization", "person", "ordinal", "event", "facility"], "input": "It said the 1,000 rail cars are in addition to the 1,450 coal rail cars presently being produced for Norfolk Southern , a Norfolk , Va. - based railroad concern ."}
{"geographical social political": ["Norfolk", "Va."], "organization": ["Norfolk Southern"], "person": [], "ordinal": [], "event": [], "facility": []}